How to Change Spark plugs on A 05 GC 4.7 with pictures - Page 2 - JeepForum.com

Reply
 
LinkBack Thread Tools
post #16 of 32 Old 07-27-2010, 06:05 AM
Nightcrawler
Registered User
2010 WK 
 
Join Date: Jul 2010
Location: Niagara Falls
Posts: 14
My 1989 Nissan Pick Up 2.4 4 cyl had intake/exhaust plugs. Even at 350,000 kms, it went in for an e-test and the mechanic was shocked at how low the emissions were.

Great powertrain, but a shame about the rampant rusting on the body.


~ 2005 Jeep Grand Cherokee Limited 5.7 V8 with 5 spd Auto and Quadra-Drive II full-time Active 4WD ~
Nightcrawler is offline  
Sponsored Links
Advertisement
 
post #17 of 32 Old 10-10-2010, 03:07 PM
dawgfan77
Registered User
 
Join Date: Dec 2007
Location: Aiken, SC
Posts: 61
Awsome write-up! I have to do my wife's 08 next week. The manual recommends changing the "top row" at 30K miles, she has about 37K. Why would you only need to change half of them? Should I go ahead and do all 16 or just the top rows as recommended? When I asked a jeep tech about it, he said it was only a way to get the jeep in twice for the same service... 8 plugs now, and 8 plugs later.
Also, what plugs would you recommend for her 08?
dawgfan77 is offline  
post #18 of 32 Old 10-30-2011, 07:26 PM
0321Nick
Registered User
2006 WK 
 
Join Date: Jul 2011
Location: Woodbridge
Posts: 747
Old Thread, but wanted to send some thanks your way.

Just changed my spark plugs out today and it was a breeze because of the step by step I could study before starting.

I didn't even need to refer back to this Thread because your writeup was very well done.

Definitely was glad I picked up 1) a adjustable neck socket wrench (3/8") and 2) a multi-angle 5/8" spark plug socket. Came in handy during the passenger side rear plug!

Here's a question though - As I was changing the passenger side plugs (in the back) I found a male end of a electrical cord.... No idea what is was for or connected to... Does my used Jeep have a engine warmer hooked up that I wasn't told about?

KHAKI CLUB #65
2006 WK 4.7L V8 - Modified OME HD with Bilstein 5125s (28" length); JBA UCA; JKS Rear Discos; K&N CAI; PowerStop Discs; HyperTech; TOYO Open Country AT IIs 285/70/17; + some other goodies
0321Nick is offline  
post #19 of 32 Old 10-30-2011, 10:33 PM
PeterF
Registered User
2006 WK 
 
Join Date: Feb 2011
Location: Glenview
Posts: 104
Is that the chord that plugs into the temperature sensor on the air box?
PeterF is offline  
post #20 of 32 Old 10-31-2011, 07:56 AM
0321Nick
Registered User
2006 WK 
 
Join Date: Jul 2011
Location: Woodbridge
Posts: 747
Quote:
Originally Posted by PeterF View Post
Is that the chord that plugs into the temperature sensor on the air box?
I'm not sure, would it look like a straight-up-electrical plug?

On the bright side, with the new sparks my Jeep idles at about 650-700 rpm.

Before it was at 500 rpm and would flutter every once in a while.

KHAKI CLUB #65
2006 WK 4.7L V8 - Modified OME HD with Bilstein 5125s (28" length); JBA UCA; JKS Rear Discos; K&N CAI; PowerStop Discs; HyperTech; TOYO Open Country AT IIs 285/70/17; + some other goodies
0321Nick is offline  
post #21 of 32 Old 10-31-2011, 07:18 PM
WJWKXJZJ
Registered User
1996 XJ Cherokee 
 
Join Date: Sep 2011
Location: Churchville
Posts: 174
Block heater is 600 Watts and if you trace the cord, you'll find it leads to a freeze plug next to the starter.

Plug it into a timer and have warm coolant (100-120 degrees in 20-30 F weather if parking outside) without starting the engine and letting it idle before you set off on cold mornings. 1-2 hours should be enough plug-in time if you want to use it as I described.
WJWKXJZJ is offline  
post #22 of 32 Old 10-31-2011, 09:50 PM
The_War_Wagon
Registered User
2007 XK Commander 
 
Join Date: Oct 2011
Location: da' 'BURGH
Posts: 243
Quote:
Originally Posted by sammy29926 View Post
Jeep has a coil over spark ignition system which means every spark plug gets its ignition coil. First Disconnect the coil plug and then loosen the 10mm coil holding bolt.

WORTH the price of admission!!! NOW I know why I can't find a plug wire SET for my 287 Commander!!!

'07 Commander, Rocky Mountain Edition, 67k miles, & looking for advice!!!
The_War_Wagon is offline  
post #23 of 32 Old 10-31-2011, 09:58 PM
pjkatz04
Registered User
2002 WJ 
 
Join Date: Apr 2007
Location: Brooklyn, NY
Posts: 670
Quote:
Originally Posted by sammy29926 View Post

This is what you see when you lift the hood.


after the new plugs are in, this is what you'll see when you close the hood.
Attached Thumbnails
163_0704_02z+2006_hennessey_srt600_jeep_srt8+engine.jpg  

2002 4.7, Selec-Trac, K&N FIPK II, JetChip Stage 1.
pjkatz04 is offline  
post #24 of 32 Old 10-31-2011, 10:14 PM
0321Nick
Registered User
2006 WK 
 
Join Date: Jul 2011
Location: Woodbridge
Posts: 747
Quote:
Originally Posted by pjkatz04 View Post
after the new plugs are in, this is what you'll see when you close the hood.
Thats not what my 4.7L looked like after new plugs...

KHAKI CLUB #65
2006 WK 4.7L V8 - Modified OME HD with Bilstein 5125s (28" length); JBA UCA; JKS Rear Discos; K&N CAI; PowerStop Discs; HyperTech; TOYO Open Country AT IIs 285/70/17; + some other goodies
0321Nick is offline  
post #25 of 32 Old 11-01-2011, 04:48 AM
pjkatz04
Registered User
2002 WJ 
 
Join Date: Apr 2007
Location: Brooklyn, NY
Posts: 670
Haha great writeup!

Sent from my iPhone using JeepForum

2002 4.7, Selec-Trac, K&N FIPK II, JetChip Stage 1.
pjkatz04 is offline  
post #26 of 32 Old 11-01-2011, 07:55 AM
PeterF
Registered User
2006 WK 
 
Join Date: Feb 2011
Location: Glenview
Posts: 104
0321nick I'll take a pic when I get home if you need it
PeterF is offline  
post #27 of 32 Old 11-01-2011, 07:56 AM
BonesWK
Registered User
2006 WK 
 
Join Date: Apr 2008
Location: Wilmington
Posts: 2,022
there is a video in the FAQ section as well fellas!

Ryan
2006 Black WK Limited 4.7 4x4 QD II SOLD

Current - 2008.5 Mazdaspeed 3

If you want to achieve greatness, stop asking for permission
BonesWK is offline  
post #28 of 32 Old 11-01-2011, 09:37 AM
0321Nick
Registered User
2006 WK 
 
Join Date: Jul 2011
Location: Woodbridge
Posts: 747
Quote:
Originally Posted by PeterF
0321nick I'll take a pic when I get home if you need it
Yeah, that would be sweet so I can be 100% positive. I'm pretty sure your right though.

Quote:
Originally Posted by BonesWK
there is a video in the FAQ section as well fellas!
Yeah, it's a good video - Really glad I caught his tip about having an angle adjustable socket wrench - very handy!

KHAKI CLUB #65
2006 WK 4.7L V8 - Modified OME HD with Bilstein 5125s (28" length); JBA UCA; JKS Rear Discos; K&N CAI; PowerStop Discs; HyperTech; TOYO Open Country AT IIs 285/70/17; + some other goodies
0321Nick is offline  
post #29 of 32 Old 11-01-2011, 06:44 PM
PeterF
Registered User
2006 WK 
 
Join Date: Feb 2011
Location: Glenview
Posts: 104
Here the temperature sensor chord.

Here it is plugged in.

Here is the sensor itself (taken out of the air box)
PeterF is offline  
post #30 of 32 Old 11-02-2011, 08:39 AM
BonesWK
Registered User
2006 WK 
 
Join Date: Apr 2008
Location: Wilmington
Posts: 2,022
Quote:
Originally Posted by 0321Nick View Post
Yeah, it's a good video - Really glad I caught his tip about having an angle adjustable socket wrench - very handy!
amen, that thing saved me big time when I did mine.

Ryan
2006 Black WK Limited 4.7 4x4 QD II SOLD

Current - 2008.5 Mazdaspeed 3

If you want to achieve greatness, stop asking for permission
BonesWK is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
spark @ coil, no spark @ plugs 94GC52 ZJ Grand Cherokee Forum 4 07-09-2009 06:17 PM
Change spark plugs on a 4.7 @ 30k? cpdorroh WK Grand Cherokee & XK Commander Forum 18 05-24-2009 06:26 PM
How to change spark plugs on 5.7l ? daaaaaan WK Grand Cherokee & XK Commander Forum 1 04-19-2009 05:25 PM
Spark Plugs skisprinkle686 ZJ Grand Cherokee Forum 2 05-16-2006 11:31 PM
4.7 HO spark plugs change rparker559 ZJ Grand Cherokee Forum 5 09-21-2005 04:27 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome